Desoria albicornis Fjellberg, 2010, sp. n.
Desoria albicornis sp. n. (Figs. 19–29, 111, 115C) Type material (all in alcohol, sex not checked). Holotype and 55 paratypes from: "Alaska, mountains between Mendenhall Glacier and Montana Creek Trail, 58 o 29 'N, 134 o 40 'W, on melt-water ponds, 975 m. alt., 13.VII. 1980, A. Fjellb...
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2010
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| Online Access: | https://zenodo.org/record/3509495 https://doi.org/10.5281/zenodo.3509495 |
| Summary: | Desoria albicornis sp. n. (Figs. 19–29, 111, 115C) Type material (all in alcohol, sex not checked). Holotype and 55 paratypes from: "Alaska, mountains between Mendenhall Glacier and Montana Creek Trail, 58 o 29 'N, 134 o 40 'W, on melt-water ponds, 975 m. alt., 13.VII. 1980, A. Fjellberg leg." (INHS). Description. Body size up to 1.3 mm. Body shape cylindrical, slender, with relatively short legs (Fig. 115 C). Head shape normal. Abd. 5–6 weakly separated, with a clear break in setal cover. Colour uniformly violet black, antennae pure white apart from dark proximal half on ant. 1. Head with a transverse row of four small white spots (Fig. 111). Tibiotarsi paler than rest of the legs. Each side of head with 6 large ocelli and two very small ones. PAO oval, as long as diameter of nearest ocellus, with three associated setae (Fig. 24). Ant. 1 on ventral side with up to 10 long slender sensilla and 2–3 short ones in apical position. Ant. 2 with an enlarged sensillum in lateral position (Fig. 22). Ant. 3 organ normal, with 4 dorsoapical sensilla and 3 ventrolateral (Fig. 23). Ant. 4 with bifurcate subapical pin seta and a short rod-shaped subapical organite in a pit. Labrum with 4 / 554 slender setae, apical edge with 4 low ridges and a composite ventroapical ciliation (Fig. 29). Central part of frontoclypeal field with 4 (rarely 5) setae (Fig. 28). Maxillary outer lobe with bifurcate palp and 4 sublobal setae. Labial palp with apical papillae A–E present, 4 proximal setae; guard e 7 present at base of papilla E; terminal seta of the papillae shorter than the guards. Lateral process (l.p.) on papilla E strong, finger-like. Hypostomal papilla with H shorter than h 1 /h 2. Basal fields of labium with 4 median and 5 lateral setae. Head with 4 + 4 postlabial setae along ventral line. Mandibles normal, with moderately strong teeth. Maxillae with 3 -toothed capitulum and 6 lamellae covered with fine denticles only. Lamellae short, not projecting beyond tip of capitulum. Integument smooth, without visible granulation. The ... |
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